Ventilator



J. P. ALMY.

(No Model.)

VBNTILA'TOR UNITED STATES PATENT OFFICE.

JAMES F. ALMY, OF SALEM, MASSACHUSETTS VENTILATOR.

SPECIFICATION forming part of Letters Patent N0. 495,288, dated April.11, 1893.

Application filed October 31, 1892. Serial No. 4501456 (ll'o model.)

To all whom it may concern:

Be it known that I, JAMES F. ALMY, a citizen of the United States,residing at Salem, county of Essex, Commonwealth of Massachusetts, haveinvented a new and useful Improvementin Ventilators, of which thefollowing is a specification.

The object of myinvention is to control the air passing from the outsideinto the room or other apartment, so as to break up the direction of theair and prevent drafts.

My invention relates to improvements in ventilators in which there areprovided oppositely arranged wings connected together and pivoted in asuitable case and which may be set at any desired angle to regulate theamount of air passing through the ventilator.

My invention consists of a suitable case in combination with aventilator located therein and adapted to be operated so as to regulatethe amount of air passing through the said ventilator.

It further consists of two opposite, concaveshaped wings havingconnecting bars pivotally connected thereto, and it further consists inproviding said wings with cushions for holding said wings in properposition during their movements.

My invention consists of certain novel features, constructions andcombinations of parts hereinafter described and pointed out in theclaims.

Referring to the accompanying drawings which form part of thisapplicatiom-Figure 1 is a perspective view of the ventilator with thecase in which the ventilator is located in dotted lines. Fig. 2 is avertical cross-section through Fig. 1 showing the usual position of theventilator in practice. Fig. 3 is a vertical cross-section through Fig.1 showing the position of the ventilator with the wire screen at anangle of forty-five degrees.

Like letters of reference refer to like parts throughout the severalviews.

Within a case A having the side air openings A and A is arranged aventilator B pivoted in the ends of the caseat C. The venti latorconsists of the opposite, concave-shaped wings D and E which arepivotally connected to each other by the cross-arms F pivoted to thecase at C and pivoted to the opposite wings at G and H so as to allow afree movement to the win gsin changing their positions. Each wing has alip I to which the wire screen J is secured, and the arms F at each endhave a slot K in which the screen is held and fastened. At each end ofthe wings is secured a piece L which, as shown in the several views ofthe drawings, prevents air from passing through the ventilator except bythe opening under the screen, and at the lower and upper endsrespectively of the top and bottom wings there is provided a rubbercushion M as shown, which bears on the connecting crossarms F for thepurpose of yieldingly holding said wings in their proper places duringtheir movements, and as it is yielding it prevents binding of the partsas the ventilator is operated.

The case at its top and bottom is provided with concavities A and Afinwhichthe opposite wings D and E fit when revolved to open the ventilatorto admit air.

The herein described ventilator can be placed under the window-casing orin the lower casing of the window, or can be inserted in the walls ofthe building or used in any position where desired.

N represents a screw or other device by which the ventilator can beoperated to admit air.

In the usual position of the ventilatorin ward and passes through thewire screen J into the room or other apartment.

I do not limit myself to the exact construction and arrangement shown asthe same may be varied without departing from the spirit of myinvention.

From the construction shown,it is obvious that the two opposite wingsmove as one so that the operation of one controls the other.

Having thus ascertained the nature and set forth the construction of myinvention, what I claim as new, and desire to secure by Letters Patentof the United States, is

1. In a ventilating apparatus, the combination with a case having airopenings, of aventilator having opposite Wings connected together andpivoted in said case, and a wire screen extending between said wings andsecured thereto, substantially as set forth.

2. In a ventilating apparatus, the combination with a case having airopenings and concave in its top and bottom, of a ventilator consistingof oppositively arranged concave shaped wings connected together andpivoted in said case and adapted to register in their movements with theupperand lower concavities of the case and a wire screen extendingbetween said wings and secured thereto, substantially as set forth.

3. In aventilating apparatus, the combination with a case having airopenings, of a ventilator pivoted in said case and consisting ofopposite wings connected together and provided with pieces attheir endsfor preventing the passage of air through the ends of said wings,substantially as set forth.

4. In a ventilating apparatus, the combination with a case having airopenings, of a ventilator having opposite wings, cross-bars connectingsaid wings and pivotally secured thereto and a cushion between saidwings and bars, substantially as set forth.

5. In a ventilating apparatus, the combination with a case having airopenings, of a ventilator pivoted therein and consisting of two.opposite wings, connections between said win gs and a cushion locatedbetween the wings and the connections between said wings, substantiallyas set forth;

6. In a ventilating apparatus, the combination with a case having airopenings, of a ventilator having opposite wings connected by cross-barspivoted to the wings, a wire screen extending between said wings, andsecured to lips of the wings and to the slots in the cross-bars,substantially as set forth.

7. In a ventilating apparatus the combination with a case having sideair openings and concave inwardly in its top and bottom, of a ventilatorpivoted therein and consisting of oppositely arranged concave-shapedwings pivotally secured together and adapted to register with theconcave top and bottom of the case, and side pieces secured to the wingsfor preventing the entrance of air under the ends of the wings, and ayielding cushion for holding said wings in their proper positions duringthe movement of said wings, and to prevent binding, substantially as setforth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing Witnesses, this 19th day of October, 1892.

JAMES F. ALMY.

W i tn esses E. L. HARLOW, HELEN DURWARD.

